openwrt-image-*: mv command not working

[tuanha-viosoft]

I tried "mv" command on openwrt-image-minimal, base and full, it doesn't work.
root@192:~# mv a b
mv: can't rename 'a': Function not implemented

[kraj]

what arch are you building for ? May be strace this mv cmd and see if there is some syscall not implemented.

[tuanha-viosoft]

what arch are you building for ? May be strace this mv cmd and see if there is some syscall not implemented.

Build Configuration:
BB_VERSION = "1.40.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "ubuntu-16.04"
TARGET_SYS = "riscv64-oe-linux-musl"
MACHINE = "qemuriscv64"
DISTRO = "nodistro"
DISTRO_VERSION = "nodistro.0"
TUNE_FEATURES = "riscv64 littleendian"
meta = "master:c31bcb0555ae77fcb59c4d0798ec66bb27f63dc2"
meta-oe
meta-multimedia
meta-python
meta-networking = "master-next:90956db4f410b162acb1468b93ebfc86786c4816"
meta-openwrt = "master:42e95362f24deeaefaa36b374125e21e08fdd6fb"
meta-riscv = "work:5b35295781cdfd255ef16b04073f182feffe5a0e"

I get the meta-riscv from here:
https://github.com/riscv/meta-riscv

[kraj]

This seems to be risc-v specific, can you try same cmd on qemuarm ?

[tuanha-viosoft]

I tried, it seems that only mv command didn't work. Of course, if I replaced busybox by coreutils, mv command worked.

[kraj]

I think it could be related to musl+riscv combo, I would like to see if it happens with other arches as well likely qemuarm